Confidence: Medium · Source: FCC ULS · As of 2026-09-09
K3SI
ActiveWELKER, DAVID A
- Location
- SUNBURY, PA
- Class
- Amateur Extra
- Granted
- 2017-01-30
- Expires
- 2027-02-12
- Previous call
- AA3BO
- FRN
- 0005109194
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Vanity availability
HeldCurrently held
K3SI is held by an active license; it isn't a vanity slot right now.
Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).
Callsign genealogy
Full chain →Previously held by current licensee
- AA3BOno FCC ULS record on file
License history
0 eventsNo recorded events.